.btn{
  width: 100%;
  max-width: 440px;
  min-height: 60px;
  font-size: 1rem;
  font-weight: var(--fwBold);
  font-family: inherit;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  letter-spacing: 0.05rem;
  line-height: 1.35rem;
  position: relative;
  padding: 0.9rem var(--defaultSpace);
  margin: 0 auto;
  color: rgba(255, 255, 255, 0.9);
  background: linear-gradient(30deg, var(--btnsColor2), var(--btnsColor));
  cursor: pointer;
  border-radius: 8px;
  display: block;
}

.btn::before{
  content: "";
  width: 100%;
  height: 100%;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(30deg, var(--btnsColor2), var(--btnsColor));
  z-index: -1;
  filter: blur(15px);
  opacity: 0.6;
}

.btn span{
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}

.btn:hover{
  background: linear-gradient(30deg, var(--btnsColor), var(--btnsColor2));
  transform: scale(1.02);
  transition: 0.2s;
}

.btnCk span{left: calc(50% + 15px);}

.btn.btnCk span::after{
  content: url(../svg/shopping-cart.svg);
  width: 15px;
  position: absolute;
  top: 55%;
  left: -30px;
  transform: translateY(-50%);
  display: block;
}

@media only screen and (min-width: 375px){
  .btn.btnCk::after{left: calc(var(--defaultSpace) * 4.5);}
}

@media only screen and (min-width: 768px){
  .btn.btnCk::after{left: calc(var(--defaultSpace) * 7.5);}
}

@media only screen and (min-width: 1000px){
  .btn.btnCk::after{left: calc(var(--defaultSpace) * 8);}
}